Locking device for differential gears.



W. A. BESSERDICH & B. A. MOSLING.

LOCKING DEVICE EOE DIFFERENTIAL GEARS.

AAAAAAAA 10N FILED MAB 19,1913.

1, 1 1 1,728. Patented sept. 29, 1914.

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l 'ZIM/547W JUNITED sTATus PATENT o-Frioii.

WILLIAM A. BESSERDICH AND ,BERNHARD A. MOSLING, OF CLINTONVILl'LEl, WISCONSIN.

LOCKING DEVICE FOR DIFFERENTIAL GEARS.

Specification of Letters Patent.

Patented Sept. 29, A1914.

To all whom it may concern Be it known that we, WILLIAM A. BESSER- DICH and BERNHARD A. MosLING, citizens of the United States, residing at Clintonville,

in thecounty of Waupaca and State of Wiscousin, have invented certain new and useful improvements in Locking Devices for Dif- 'ferential Gears and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This `invention relatesl to a locking device for differential gears which is particu- '15 larly adapted for motor vehicles.`

The object of the/invention is lthe provision of a clutch device coperating with parts of a differentialgearing whereby the rear or drive shaft is coupled from wheel to v wheel as one solid member.

In the accompanying drawings, Figure 1 represents aview partly in section of our locking device as applied-to the differential gearing 'and rear axle of a motor vehicle, andFig. 2 is a top plan .view of a part-of the actuating means for the locking device.

Referring to the drawings, the numerals 1 'and 2 represent the two parts of the rear axle of a .motor vehicle, or that shaft which is driven from the engine. The adjacent ends of the parts 1 and 2 are provided with the ordinary or any preferred form of differential gears 3 and 4. The end ofv the shaft 2 is squared as at 5, ,and slidably re ceives the clutch member 6 having teeth 7 thereon adapted for yengagement with the teeth 8 on the inner end :of the hub of the diiferential gear 3. The pair of differential v gears 3 and'4 is-meshed with the bevel gears 9 in the usual manner.' The differential gear 4 is providedfwith a'plurality of bores 10 extending parallelwith the axis of said gear and through which are slidably engaged the,

15 indicates a ,fragment of the housing for the'diderential and is provided in the upper portion of one end thereof with an aperture through which works an arm 16 carrying a yoke 17 which partially sur! rounds the ring 12 and engages over the studs 14 on the ring 13. The outer end of the arm 16 is bifurcatedand connected withV a rocker arm 18 by the link 19. The rocker arm 18 issecured on a shaft 2O journaled in the housing 15, and a crank arm 21 is also secured over said shaft 20.

The clutch member 6 is normally retained disengaged from the teeth 8 of the difieren# tial gear 3 by the tension. of the spring 22 mounted over the arm 16. A collar`23 is also fitted over said arm 16 to limit the movement thereof and tovprevent the escape of oil from the housing or casing 15. y

When our invention is employed inconnection with motor vehicles, we. provide a foot or hand lever on the forward portion of the vehicle adjacent the driver and connect the same with the crank arm 21 in any suitable .manner in order that the device' will be at all times under the control. of the driver. To lock the shafts 1 and 2 together, the crank arm 21 is moved rearwardly and the ring 12 isv moved inwardly longitudinally of the shaft 2 engaging the A clutch member with the inner end' of the hub 3, ,thus rigidly locking the shafts together.

It will be seen that the invention is particularly adaptable to automobiles, and provides an efficient means for preventing slid-vr ing or spinning of one of the drive l`wheels' over a part of a road where there is tread for but one wheel.

What-we claim is 1. The combination with a two art driven shaft having one of the ends o 4the parts squared, and differential gears mounted over 'said parts; of a clutch member mounted over saids uared end and adapted for engagement wit parts ofl said differential gears, a ring slidable on onel side of -the shaft parts, rods connecting said ring with s'aidclutch member, and means for shifting said ring on said shaft part.

2. In a locking device, a two part shaft, a squaredv end'on one of the adjacent. endsof the parts of 'said shaft, adifferenti il gear on the end of the other part'of said shaft, teeth shaft parts, connecting means between said on the hub of said gear, a. clutch member names to thisspecification in the presence of glidable over said squared eng. afm.1 adapted two subscribing Witnesses.

or envagement with the teet o t e hub of said A,f ggrar, a ring sldable on one side o the 'ABIISSEICH ring and the clutch member, and means for Witnesses: shifting said ring on said shaft part. LEVI C. LARsoN,

In testimony whereof We have signed our CHAs. J. LAUX. 

